Wrench support for drilling equipments



Mmh n 1924, aw

' G. W. SEYBERT WRENCH SUPPORT FOR DRILLING EQUIPMENTS Filed Jan. 8. 1923 2 Sheets-Sheet 1 March 111 1924; 1,48,298

G. W. SEYBERT WRENCH SUPPORT FOR DRILLING EQUIPMENTS Filed Jan. 8. 1923 2 Sheets-Sheet 2 Q3 h will a ll llia in rice.

"WRENCH SUPPQR'I T50R- DHILLING EQUIPMENTS.

Application filed January 8, 1923.

T0 aZZ whom it 971 4 concern Be it known that l. GUY W. Snvnua'r. a citiz of the United States. residing at in the county of @kmulgce and State mahoina. have invented certain new and useful l mprovci. its in l french Supports for Drilling Equipments, of which the following is a specification. refercnce being had to the acco ying drawings.

This invent on relates to appliances used in drilling oil wells and wells of like character, and particularly to means for supporting wrenches used under these circumstances.

Tools used for drilling oil and gas wells are very heavy and the wrenches used for manipulating these tools and setting up the joints of the oil well casing or tubing weigh anywhere from 4-50 pounds to 550 pounds and are, therefore very difficult to handle.

The general object of the present invention is to provide means whereby these wrenches and, if desired, other tools may be suspended and counterbalanced so as to permit their ready manipulation.

A further object is to provide a construction of this character in the form of an attachment adapted to engage one of the girts of a derrick and which is so designed that the wrenches or other tools may be supported thereby and counterbalanced, permitting the free raising, lowering or swinging of the wrench and its ready manipulation.

()ther objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary elevation of a derrick, the girtbeing in section and showing my supporting devices applied thereto;

Figure 2 is a top plan view of the supporting devices;

Figure 8 is a fragmentary elevation of the derrick looking from the inside of the derrick;

Figure 4 is a top plan View of the wrenches in operative position.

Referring to these drawings, it will be seen that l y support comprises a bracket 10 which is made of heavy metal this bracket having a shank portion which is normally inclined to a vertical plane when the bracket is in place. the upper portion of this shank being vertically extended to form a head 11. This head is formed with a slot or slots Serial No. 611,336.

12 and 13. The head may be formed with either one slot or with two, though preferably "ith two one of these slots, as. for instance, the slot 12 being so formed as to en wooden girt A of the oil well derrich. and the slot 13 being so formed as to engage the girt of a derrick built of iron pipe, as illustrated in Figure 1 where the girt B is shown in dotted lines. The upper end of this head 11 is formed to provide a bearing 14'. and coacting with this half bearing is the cap 15 forming the other half of the hearing. The lower end of the bracket is angularly extended at 16 and its upper surface is formed with a half bearing 1'? and coacting therewith is the cap 18. The caps 15 and 18 are held in place by means of bolts 19. It will be noted that these hearings are disposed vertically beneath each other when the bracket is in place on the girt of an oil well derrick.

Adapted to be disposed through the up per bearing is the lever 20. This lever has adjacent one end an angularly bent portion 21 which rests in the bearing and provides the fulcrum for the lever. This angularly bent portion, as before remarked is disposed adjacent one end of the lever so that the lever has a short arm 22 and a long arm 23. The short arm is disposed on the in side of the derricl-z. while the long arm is disposed on the outside of the derrick. The long arm is provided with means at its extremity for the support of a counterbalancing weight and. as illustrated this long arm is angularly bent at its extremity at 24: and provided with two removable pins 25 between which weights 26 are disposed, these weights being removable so that any desired weight may be disposed upon this end of the arm to counterbalance the tool or wrench which is being supported upon the other arm. The arm 22 at its extremity is bored or otherwise arranged for connection to a cable 27. This cable 27 at its extremity 18 connected to the ordinary wrench C, which may be of any suitable character but is illustrated as a wrench having an eye 0 with wiich the cable is adapted to be connected.

I do not wish to limit myself to any particular means for connecting the cable to the wrench. Operating through the lower bearing is a lever 28 of the same character as the lever before described, that is it has the transversely extending portion 29 which is disposed in the lower bearing and constitutes the shaft or fulcrum for the lever and is provided with a long arm and a short arm. The long arm is angularly bent at extremity and has mounted thereon the weights 26 held in place by pins 25, as previously described. The short arm is engaged at its extremity with a cable 30, which in turn is connected to a wrench D, it being necessary to have two WIGIICllOS, one to hold a pipe fixed while the other wrench is used for unscrewing or screwing in a section of pipe to the fixed pipe.

While I have described this device as being used in connection with a wrench as a means for counterbalancing the same and permitting its ready handling, I do not Wish to be limited to its use with a wrench, as it might be used for supporting other heavy tools or implements from the derrick. It is obvious that with this construction the very heavy wrenches which are particularly difficult to handle are counterbalanced so that they may be relatively readily shifted and swung or otherwise manipulated and without danger and with small effort. The bracket is to be disposed some 4-5 or 50 above the floor of the derrick and this bracket will be made of steel and be of any suitable length.

While lhave illustrated certain details of construction, I do not wish to be limited to these, as it is obvious that many changes might be made in these details and in the arrangement of parts without departing from the spirit of the invention.

I claim 7 1. The combination with a supporting frame, of a bracket mounted thereon and having a bearing extending transversely of the supporting frame, a lever having inter mediate its ends a laterally disposed cranked portion disposed in said bearing, one arm of the lever being disposed on one end of said cranked portion and the other arm of the lever being disposed on the other end of said cranked portion, a cable connected to the inner end of the lever and adapted to be connected to an implement to be manipulated, and counterweightingmeans engaged with the outer end of the lever.

2. An implement supporting attachment for well derricks comprising a bracket having a head at its upper end, the head being formed with an approximately vertically extending slot adapted to engage the girt of a derrick, the bracket at its upper and lower ends being formed with bearings, levers disposed in said bearings, the inner end of each lever having a cable depending therefrom, and a counterweight detachably engaging the outer end of the lever.

3. An implement supporting attachment for well derricks comprising a bracket, the upper end of which is formed to provide a head, the head having two vertical slots open at their lower ends, one of said slot-s being formed to engage a wooden girt and the other a pipe girt, the upper end of said head being formed to provide a bearing, the lower end of the bracket being angularly turned and the upper face of the angularly turned portion of the bracket being formed to provide bearing, each of said bearings having a detachable cap, and upper and lower levers, each lever having an angularly bent, crank-shaped portion intermediate its ends ada ted to be disposed in the corresponding bearing. said crank-shaped portion being disposed adjacent one end whereby to provide short arm and a long arm, the short arm of the lever having a cable engaged therewith whereby it may be connected to an implement, the long arm of each lever carrying a detachable counterweight.

4:. An implement supporting attachment for well derricks comprising a bracket, the upper end of which is formed to provide a head, the head having two vertical slots open at their lower ends, one of said slots being formed to engage a wooden girt and theother a pipe girt, the upper end of said head being formed to provide a bearing, the lower end of the bracket being angularly turned and the upper face of the angularly turned portion of the bracket being formed to provide a bearing, each of said bearings having a detachable cap, and upper and lower levers, each lever having an angularly bent, crank-shaped portion intermediate its ends adapted to be disposed in the corresponding bearing, said crank-shaped portion being disposed adjacent one end whereby to provide a short arm and a long arm, the short arm of the lever having a cable engaged therewith whereby it may be connected to an implement, the long arm of each lever being angularly bent to provide a sup port for a plurality of counterweights, and means engaging this angularly bent end for holding the counterweights in place.

5. An implement supporting attachment for well derricks comprising a bracket formed to provide a head and having a vertical slot open at its lower end and adapted to engage a derrick girt, the bracket being formed to provide a bearing, and a lever having an angularly bent crank-shaped portion intermediate its ends adapted to be disposed in the bearing, said crank-shaped portion being disposed adjacent one end of the lever whereby to'provide a short arm and a long arm, the short arm of the lever having a cable engaged therewith whereby it may be connected to an. implement and the long arm of the lever carrying a detachable counterweight.

6. An implement supporting attachment for well derricks comprlsing a bracket, the

its lower end whereby to engage the girt of a derrick, the upper end of the head bein formed to provide a bearing, the lower end of the bracketbeing angularly turned and being formed to provide a second bearing, and upper and lower levers each lever having an angularly bent crank-shaped portion intermediate its ends adapted to be disposed in the corresponding bearing, one arm of the lever having a cable engaged therewith whereby it may be connected to an implement and the other arm of each lever carrying a detachable counterweight.

7. An implement supporting attachment for oil well derriclrs comprislng a bracket having a vertical slot whereby it may be detachably engaged with the girt of a der rick, the bracketextending vertically and having a bearing, a lever supported in said bearing, a cable connected to the inner end of the lever, and detachable counterbalancing weights disposed upon the outer end of the lever.

In testimony whereof I hereunto affix my signature.

GUY W. SEYBERT. 

